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June/July 2003 Wildlife Inventory

The Boulder County wildlife inventory needs help! Although the summer months following spring migration have always been a slow time for birders, this year we received so few reports that it was an embarrassment. We are receiving reports of rarities through COBIRDS; it is the every day sightings that are pitifully under reported, and some areas of the county are not represented at all. The wildlife inventory has detailed records from 1979 of the birds seen in Boulder County, and a few records from an earlier date. We need to know whether the wildlife inventory is still of value to birders. Please show this by either sending us your reports, or letting us know your opinions. Otherwise we feel that the inventory should be discontinued. The complete listings for each month are available on the Audubon website at www.boulderaudubon.org/inventory.html.

June 2003 was cooler and wetter than average, while July 2003 was super hot with fifteen consecutive days over 90 F. Probably the hot weather contributed to the lack of July reports from the plains; only three species of duck were reported and no Killdeer at all. However, it did not explain why we got very few reports from the mountains, although the foothills were well covered. The Indian Peaks breeding bird count (IP) ensured that mountain birds were well reported in June.

This was a good year for hummingbirds. By mid-July hummingbirds were beginning to migrate. A female Magnificent Hummingbird was found in the high country. Black-chinned Hummingbirds were seen both in the mountains and out on the plains. We are now beginning to expect to see many Calliope Hummingbirds in July, and this year was no exception. Both Broad-tailed and Rufous Hummingbirds were seen in fair numbers, and again were found to be moving out on to the plains towards the end of July.

A nesting Grace’s Warbler caused great excitement. This is a new species for the wildlife inventory, as well as a first breeding record. A Hooded Warbler heard in early July in Gregory Canyon is a possible indicator that this species has bred here again. An Ovenbird seen on the Indian Peaks bird count was a first sighting for the year. A Red-eyed Vireo was reported in July; this is a species that can easily be missed. Another easily missed species is Grasshopper Sparrow; they were reported as present in small numbers both months. White-winged Doves are definitely on the increase and we received reports of three separate sightings for the two months.

Bald Eagles continued to be seen throughout the summer. Hopefully this will be the beginning of a trend rather than an anomaly. Ospreys are increasing in numbers having successfully bred in several locations. A few Peregrine Falcons continue to attempt to breed. A Sanderling seen at the beginning of June was a late spring migrant. An Ash-throated Flycatcher was seen on Rabbit Mountain in June; as far as I know there has been only one record of these birds breeding in the county. A Boreal Owl was heard near Brainard Lake, and a Northern Saw-whet Owl in Sunshine Canyon.

Altogether 155 bird species were reported in June which is lower than average. The 113 bird species reported for July is a record low count, and in no way reflects the true state of birds in the county. We would particularly like to thank those people from whom we did receive full reports. TOP


Birds
SPECIES June Date(s) Area(s) NO. July Date(s) Area(s) NO. Observer
Pied-billed Grebe 18 23 1 6 31 1 SJ
Eared Grebe 15 12 1 .... .... ... AB
Western Grebe 18 24 20 .... .... ... ...
American White Pelican 18 24 4 24 11 1 SJ(6),CD(7)
Double-crested Cormorant 14,15,18,22 12,31,IP 9 19,24 11,26 28 ...
American Bittern 12 31 1 2 31 1 SJ
Great Blue Heron 7,14,15,22 12,31,IP 6 2 25 1 SJ(7)
Great Egret 9,23 12,23 2 .... .... ... ...
Black-crowned Night-Heron .... .... ... 5 23 1 EZ
Turkey Vulture a.m. 31,34,35,37,IP 15 a.m. 23,31,37 26 ...
Canada Goose Present .... ... Present .... ... ...
Wood Duck 1,9 34 2 5,6 23,31 7 DJW(6)
Gadwall 15 12 1 .... .... ... AB
Mallard Present .... ... Present .... ... ...
Blue-winged Teal 7,15,22 12,31 16 2 31 1 SJ(7)
Cinnamon Teal 15,22 12 14 .... .... ... AB
Northern Pintail 15 12 1 .... .... ... AB
Green-winged Teal 14,15,22 12,IP 16 .... .... ... ...
Redhead 15,18,22 12,24 7 .... .... ... ...
Ring-necked Duck 14,15 12,IP 18 .... .... ... ...
Common Merganser 14 IP 4 .... ... ... ...
Osprey a.m. 11,22,24,IP 12 .... .... ... ...
Bald Eagle 16 12 3 19 26 2 SJ
Sharp-shinned Hawk 7 31 1 .... .... ... SJ
Cooper’s Hawk 14 IP 2 .... .... ... ...
Northern Goshawk 14,28 36,IP 2 8 14 1 LAG(7)
Swainson’s Hawk 1,22 12,15 2 .... .... ... AB
Red-tailed Hawk 7,14,18,21 23,31,39,IP 15 14,20 33N,36 2 ...
Golden Eagle 14,15,24 12,48,IP 3 3,20 31,33 3 ...
American Kestrel a.m. 12,32,34,IP 6 a.m. 8,26,33,34 10 ...
Peregrine Falcon a.m. 36 4 19 26 3 SJ
Blue Grouse 14 IP 10 .... .... ... ...
White-tailed Ptarmigan 14 IP 9 .... .... ... ...
Wild Turkey a.m. 36,37 4 a.m. 37 3 G and LM(7)
Virginia Rail 30 31 1 3 31 2 SJ
Sora 14,24 31,IP 2 4 31 1 SJ(7)
Killdeer 7,14,15,22 12,23,31,IP 13 .... .... ... ...
American Avocet 15 12 1 5 23 1 AB(6),EZ(7)
Spotted Sandpiper 7,14,18,22 12,25,31 26 5 23 3 EZ(7)
Sanderling 1* 23 1 .... .... ... EZ
Wilson’s Snipe 6,7,14 21,31,IP 12 3,5,15,24 23,26,30,31 12 ...
Rock Pigeon Present .... ... Present .... ... ...
Band-tailed Pigeon a.m. 35,39,48,IP 100 26 43 21 S and MP(7)
White-winged Dove 1,2 14,18 2 10 31 1 G and MO(7)
Mourning Dove a.m. thruout 70 a.m. 26,31,33,34,37 23 ...
Great Horned Owl 14 IP 1 .... .... ... ...
Northern Saw-whet Owl .... .... ... 22 40 1 BK
Boreal Owl .... .... ... 11* 46 1 JHa
Common Nighthawk a.m. pl.,ft.,mt. 13 1,4,5,7 34 2 ...
Common Poorwill 14 37 2 .... .... ... RED
White-throated Swift 1,7,14 34,36,IP 7 7,20 33N,34 4 ...
Magnificent Hummingbird .... .... ... 26* 43 1 SMP
Black-chinned Hummingbird .... .... ... 24*,26 12,43 2 AH*
Calliope Hummingbird .... .... ... 11*-on 12,30,33,34 6 DJW*
Broad-tailed Hummingbird a.m. thruout 412 a.m. pl.,ft.,mt. 36 ...
Rufous Hummingbird 14* IP 1 a.m. pl.,ft.,mt. 14 ...
Belted Kingfisher 7,14 31,IP 4 3 31 1 SJ(7)
Lewis’ Woodpecker 2,28 33,37 2 30 33 3 S and MP(7)
Williamson’s Sapsucker 14,21 39,IP 6 .... .... ... ...
Red-naped Sapsucker 14 IP 16 .... .... ... ...
Downy Woodpecker a.m. 31,34-36,IP 11 a.m. 26,34,36,37 4 ...
Hairy Woodpecker a.m. ft.,mt. 36 a.m. 34,36,37 7 ...
Three-toed Woodpecker 14 IP 4 .... .... ... ...
N. (Red-shafted) Flicker Present .... ... Present .... ... ...
Olive-sided Flycatcher 14,21 39,IP 21 .... .... ... ...
Western Wood-Pewee a.m. pl.,ft.,mt. 49 a.m. 26,31,33,34,36 13 ...
Hammond’s Flycatcher 1,14 36,IP 28 9 36 3 SJ(7)
Dusky Flycatcher 14,21,24,28 36,39,48,IP 109 .... .... ... ...
Cordilleran Flycatcher a.m. ft.,mt.,alp. 100 14,18,20,30 33,34,36 5 ...
Say’s Phoebe 5,15 12,31 3 3 31 2 SJ(7)
Ash-throated Flycatcher 10 17 1 .... .... .... DE
Western Kingbird 7,22 12,31 6 6,15,19 26,31 4 ...
Eastern Kingbird 7 31 2 3,15,19 26,31 22 SJ(6)
Plumbeous Vireo a.m. 35,36 3 9 36 1 SJ(7)
Warbling Vireo 1,14,21,24 36,37,39,48,IP 216 14 36 1 SJ(7)
Red-eyed Vireo .... .... ... 21* 21 1 PHa
Gray Jay 14 IP 11 .... .... ... ...
Steller’s Jay Present .... ... Present .... ... ...
Blue Jay a.m. 26,31,34 9 a.m. 31,33,34 11 ...
Western Scrub-Jay 15,17,24,27 34 1 a.m. 31,34 3 DJW(6)
Pinyon Jay 14,23 34,37,IP 4 20 37 1 RED(7)
Clark’s Nutcracker 14,21,24 39,48,IP 98 .... .... ... ...
Black-billed Magpie Present .... ... Present .... ... ...
American Crow a.m. thruout 106 a.m. 31,33,34,37 13 ...
Common Raven 1,14,21 36,39,IP 45 14,19,20,23 26,33,34,36 12 ...
Horned Lark 14 IP 47 .... .... ... ...
Tree Swallow 2,7,14 31,37,IP 137 a.m. 31,37 13 ...
Violet-green Swallow a.m. pl.,ft.,mt. 149 a.m. 33,34,37 52 ...
N. Rough-winged Swallow 7 31 35 6,19 26,31 22 SJ
Cliff Swallow 7,14,15,17 12,23,26,31,IP 110 15,19,20,30 26,33 45
Barn Swallow a.m. 12,31,35,IP 21 6,15,20 26,31,33 21 ...
Black-capped Chickadee Present .... ... Present .... ... ...
Mountain Chickadee Present .... ... Present .... ... ...
Bushtit 11 17 18 .... .... ... DJW
Red-breasted Nuthatch a.m. 35,36,39,IP 60 14 36 1 SJ(7)
White-breasted Nuthatch a.m. pl .,ft.,mt. 27 a.m. 31,33,34,36,37 7 ...
Pygmy Nuthatch a.m. ft.,mt. 39 a.m. 3,34,36,37 10 ...
Brown Creeper 14 IP 25 .... .... ... ...
Rock Wren 12,14 17,IP 19 .... .... ... ...
Canyon Wren 14 IP 1 20,30 33N 3 ...
House Wren a.m. thruout 123 a.m. pl.,ft.,mt. 68 ...
American Dipper 14,24 48,IP 5 .... .... ... ...
Golden-crowned Kinglet 14 IP 69 .... .... ... ...
Ruby-crowned Kinglet 14,21,24,28 36,39,48,IP 520 .... .... ... ...
Blue-gray Gnatcatcher 11 17 3 15,20 26,33 3 DJW(6)
Mountain Bluebird a.m. 34,39,IP 49 a.m. 34 4 DJW(7)
Townsend’s Solitaire 2,14,21,24 36,39,48,IP 53 19 26 1 SJ(7)
Swainson’s Thrush 14,24 48,IP 29 .... .... ... ...
Hermit Thrush a.m. 36,42,46,47 28 .... .... ... ...
American Robin Present ... ... Present .... ... ...
Gray Catbird .... .... ... 20 33 2 RED
Sage Thrasher 14 IP 1 .... .... ... ...
Brown Thrasher 1,23 23 1 5 23 1 EZ(7)
European Starling Present .... ... Present .... ... ...
American Pipit 14 IP 152 .... .... ... ...
Cedar Waxwing 1,30 31,34 3 16,19,20,30 26,31,33N 17 ...
Orange-crowned Warbler 14 IP 1 .... .... ... ...
Virginia’s Warbler 14,28 36,IP 7 .... .... ... ...
Yellow Warbler a.m. 26,31,32,34,IP 55 3,15,19,20 26,31,33 18 ...
Yellow-rumped Warbler a.m. 34-36,48,IP 434 14 36 1 SJ(7)
Grace’s Warbler 16* 34N 1 .... .... ... DM
Ovenbird 14*.. IP 1 .... .... ... ...
MacGillivray’s Warbler 14,21,24 39,48,IP 37 .... .... ... ...
Common Yellowthroat 7,23 23,31 3 19 26 1 SJ(7)
Hooded Warbler .... .... ... 4 36 1 AP
Wilson’s Warbler 7,14,24 31,48,IP 280 .... .... ... ...
Yellow-breasted Chat a.m. 26,31,32 3 20 33 1 RED(7)
Western Tanager 2,13,14,21 17,36,39,IP 31 9,20 33,36 7 ...
Green-tailed Towhee 14,21,24,28 36,39,48,IP 60 1 36 1 SJ(7)
Spotted Towhee a.m. pl.,ft.,mt. 11 a.m. 26,33,34,36,37 19 ...
Chipping Sparrow a.m. ft.,mt.,alp. 96 9,19,20 26,33,36 17 ...
Brewer’s Sparrow 14 IP 2 .... .... .... ...
Vesper Sparrow 14,17 26,IP 7 15,19 26 21 ...
Lark Sparrow a.m. 17,31,35,37 34 20 33 2 RED
Lark Bunting 14* IP 2 .... .... ... ...
Savannah Sparrow 14 IP 2 20 18 2 LAG(7)
Grasshopper Sparrow 17* 26 2 6,15 26,31 6 SJ(6)
Fox Sparrow 14,24 48,IP 36 .... .... ... ...
Song Sparrow 7,14,17,21 26,31,39,IP 62 3,15,19,20 26,31,33 15 ...
Lincoln’s Sparrow 14,21,24 39,48,IP 231 3 31 1 SJ(7)
White-crowned Sparrow 14,24 48,IP 279 .... .... .... ...
Dark-eyed Junco .... .... ... 13-31 37 2 G and LM
Oregon Junco a.m. 35 6 .... .... ... ...
Gray-headed Junco Present .... ... .... .... ... ...
Black-headed Grosbeak a.m. thruout 35 a.m. 26,33,34,37 25 ...
Blue Grosbeak a.m. 12,17,31,32,36 8 20,22,23 18,24,32,33 25 ...
Lazuli Bunting a.m. 32,36,37 3 20 33 1 RED(7)
Bobolink 30 31 2 3,23 23,31 10 SJ(6)
Red-winged Blackbird Present .... ... Present .... ... ...
Western Meadowlark Present .... ... Present .... ... ...
Yellow-headed Blackbird 7 31 15 3 31 5 SJ
Brewer’s Blackbird a.m. 26,31,34,IP 27 9 30 2 SJ(7)
Common Grackle a.m. 12,23,31,34,IP 49 1,3,20 31,33 27 ...
Brown-headed Cowbird a.m. pl.,ft.,mt. 85 8,9,15,20 26,31,33,36 19 ...
Bullock’s Oriole a.m. pl.,ft.,mt. 25 a.m. pl.,ft.,mt. 32 ...
Brown-capped Rosy Finch 14 IP 2 .... .... ... ...
Pine Grosbeak 14 IP 21 .... .... ... ...
Cassin’s Finch a.m. 34,35,37,IP 43 a.m. 34,37 4 ...
House Finch Present .... ... Present .... ... ...
Red Crossbill a.m. 34-37,IP 58 a.m. 33,34,37 7 ...
Pine Siskin a.m. ft.,mt.,alp. 222 a.m. 34 16 DJW(7)
Lesser Goldfinch a.m. pl.,ft.,mt. 35 a.m. 31,33,34,36,37 21 ...
American Goldfinch a.m. pl.,ft.,mt. 29 a.m. 26,31,33,34,36 43 ...
Evening Grosbeak 14 IP 1 29 34 1 RED(7)
House Sparrow Present .... ... Present .... ... ...

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Mammals, Reptiles and Amphibians
SPECIES June Date(s) Area(s) NO. July Date(s) Area(s) NO. Observer
Black Bear 8,15 35,37 2 1 37 1 G and LM(7)
Red Fox a.m. 34-36,48 15 .... .... ... ...
Gray Fox 1 36 1 .... .... ... ...
Coyote 2 31 2 19 26 1 ...
Yellowbelly Marmot 24* 48 1 .... .... .... SJ
Golden-mantled Ground Squirrel a.m. 35,39,48 9 .... .... .... ...
Black-tailed Prairie-Dog Present .... ... Present .... ... ...
Least Chipmunk a.m. 35,37 2 a.m. 37 3 G and LM(7)
Chipmunk Species 24 48 2 .... .... ... SJ
Chickaree a.m. 34-36,39 13 1-17 34,36 3 ...
Abert’s Squirrel a.m. 35 1 .... .... ... SAO
Fox Squirrel Present .... ... Present .... ... ...
Vole Species 3* 37 1 .... .... ... G and LM
House Mouse a.m. 35 4 .... .... ... SAO
Mountain Cottontail a.m. 35 6 .... .... ... SAO
Cottontail species 2 30 1 19 26 1 SJ
Wapiti/Elk .... .... ... 30 37 2 G and LM
Mule Deer Present .... ... Present .... ... ...
Painted Turtle 5 31 1 .... .... ... SJ
Eastern Fence Lizard .... .... ... 3-12 37 1 G and LM
Milk Snake .... .... ... 20* 37 1 G and LM
Racer 5* 31 1 .... .... ... SJ
Wandering Garter Snake a.m. 31,35 2 4,10 31,37 3 ...
Prairie Rattlesnake .... .... ... 18 37 1 G and LM
Woodhouse Toad 30* 31 15 2 25 1 SJ
Boreal Chorus Frog .... .... ... 1 31 1 SJ
Bullfrog .... .... ... 3* 31 2 SJ

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Contributors to the June/July 2003 Inventory:
Linda Andes-Georges, Alan Bell, David Bolton, Alex and Gillian Brown, Raymond E. Davis, Gene Ellis, Chuck Doolittle, Ann Dyni, David Ely, Peter Gent, Jack Harlan, Ann Hicks, Steve Jones, Bill Kaempfer, Larry Modesitt, Gene and Lynn Monroe, Denny Morris, Sue A. Olmsted, George and Marti Oetzel, Andy Paulinos, Suzi and Myron Plooster, Richard Trinkner, John Tumasonis, David J. Waltman, Chris Wood, Eric Zorawowicz. TOP